package com.lin.mapper;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Update;

@Mapper
public interface AccountMapper {
    @Update("update account set money = money - #{money} where name = #{from}")
    void transferOut(@Param("from") String from, @Param("to") String to, @Param("money") Integer money);

    @Update("update account set money = money + #{money} where name = #{from}")
    void transferIn(@Param("from") String from, @Param("to") String to, @Param("money") Integer money);
}
